最后是 Thumbs.db 文件。Thumbs（缩写自 thumbnails）即缩略图数据库，这是一种 Windows 系统文件，采用 OLE 复合文档结构。它用于储存文件夹中图像和视频的缩略图预览缓存，以加速 Windows 资源管理器对缩略图的加载。
Promotion and relegation from rugby’s top flight is to be scrapped as part of a major restructure at the top of English club rugby after the Rugby Football Union council “overwhelmingly” voted to approve a move to a franchise model.
，详情可参考夫子
Nature, Published online: 25 February 2026; doi:10.1038/s41586-026-10194-3
They accumulate across 20+ projects with the same stale API key
合并过程：用临时数组，双指针比较两个子数组元素，小的先放入